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annotate util.c @ 800:ec23202df6a6

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Minor cleanup
author Michael Pavone <pavone@retrodev.com>
date Sun, 26 Jul 2015 13:33:48 -0700
parents 0b692b5d154b
children 3eced113081c
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1 #include <string.h>
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2 #include <stdlib.h>
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3 #include <stdio.h>
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4 #include <ctype.h>
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5 #include <stdint.h>
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6
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7 #include <sys/types.h>
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8 #include <sys/stat.h>
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9 #include <unistd.h>
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10
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11 #include "blastem.h" //for headless global
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12 #include "render.h" //for render_errorbox
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13
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14 char * alloc_concat(char * first, char * second)
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15 {
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16 int flen = strlen(first);
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17 int slen = strlen(second);
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18 char * ret = malloc(flen + slen + 1);
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19 memcpy(ret, first, flen);
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20 memcpy(ret+flen, second, slen+1);
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21 return ret;
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22 }
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23
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24 char * alloc_concat_m(int num_parts, char ** parts)
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25 {
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26 int total = 0;
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27 for (int i = 0; i < num_parts; i++) {
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28 total += strlen(parts[i]);
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29 }
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30 char * ret = malloc(total + 1);
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31 *ret = 0;
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32 for (int i = 0; i < num_parts; i++) {
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33 strcat(ret, parts[i]);
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34 }
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35 return ret;
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36 }
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37
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38 long file_size(FILE * f)
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39 {
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40 fseek(f, 0, SEEK_END);
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41 long fsize = ftell(f);
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42 fseek(f, 0, SEEK_SET);
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43 return fsize;
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44 }
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45
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46 char * strip_ws(char * text)
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47 {
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48 while (*text && (!isprint(*text) || isblank(*text)))
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49 {
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50 text++;
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51 }
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52 char * ret = text;
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53 text = ret + strlen(ret) - 1;
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54 while (text > ret && (!isprint(*text) || isblank(*text)))
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55 {
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56 *text = 0;
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57 text--;
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58 }
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59 return ret;
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60 }
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61
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62 char * split_keyval(char * text)
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63 {
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64 while (*text && !isblank(*text))
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65 {
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66 text++;
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67 }
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68 if (!*text) {
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69 return text;
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70 }
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71 *text = 0;
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72 return text+1;
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73 }
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74
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75 uint32_t nearest_pow2(uint32_t val)
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76 {
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77 uint32_t ret = 1;
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78 while (ret < val)
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79 {
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80 ret = ret << 1;
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81 }
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82 return ret;
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83 }
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84
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85 static char * exe_str;
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86
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87 void set_exe_str(char * str)
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88 {
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89 exe_str = str;
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90 }
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91
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92 void fatal_error(char *format, ...)
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93 {
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94 va_list args;
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95 va_start(args, format);
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96 if (!headless) {
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97 //take a guess at the final size
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98 size_t size = strlen(format) * 2;
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99 char *buf = malloc(size);
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100 size_t actual = vsnprintf(buf, size, format, args);
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101 if (actual >= size) {
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102 actual++;
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103 free(buf);
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104 buf = malloc(actual);
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105 va_end(args);
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106 va_start(args, format);
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107 vsnprintf(buf, actual, format, args);
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108 }
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109 fputs(buf, stderr);
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110 render_errorbox("Fatal Error", buf);
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111 free(buf);
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112 } else {
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113 vfprintf(stderr, format, args);
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114 }
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115 va_end(args);
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116 exit(1);
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diff changeset
117 }
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
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diff changeset
118
794
792be135d3af Spawn a terminal for the debugger when needed if we are not already attached to one
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diff changeset
119 void warning(char *format, ...)
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diff changeset
120 {
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diff changeset
121 va_list args;
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diff changeset
122 va_start(args, format);
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123 #ifndef _WIN32
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diff changeset
124 if (headless || (isatty(STDERR_FILENO) && isatty(STDIN_FILENO))) {
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diff changeset
125 vfprintf(stderr, format, args);
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diff changeset
126 } else {
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diff changeset
127 #endif
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diff changeset
128 size_t size = strlen(format) * 2;
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diff changeset
129 char *buf = malloc(size);
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diff changeset
130 size_t actual = vsnprintf(buf, size, format, args);
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diff changeset
131 if (actual >= size) {
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diff changeset
132 actual++;
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diff changeset
133 free(buf);
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diff changeset
134 buf = malloc(actual);
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diff changeset
135 va_end(args);
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diff changeset
136 va_start(args, format);
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diff changeset
137 vsnprintf(buf, actual, format, args);
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diff changeset
138 }
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diff changeset
139 fputs(buf, stderr);
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diff changeset
140 render_infobox("BlastEm Info", buf);
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diff changeset
141 free(buf);
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diff changeset
142 #ifndef _WIN32
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diff changeset
143 }
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diff changeset
144 #endif
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diff changeset
145 va_end(args);
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diff changeset
146 }
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diff changeset
147
792
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148 void info_message(char *format, ...)
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149 {
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150 va_list args;
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151 va_start(args, format);
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152 #ifndef _WIN32
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153 if (headless || (isatty(STDOUT_FILENO) && isatty(STDIN_FILENO))) {
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
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154 vprintf(format, args);
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diff changeset
155 } else {
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Michael Pavone <pavone@retrodev.com>
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diff changeset
156 #endif
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diff changeset
157 size_t size = strlen(format) * 2;
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diff changeset
158 char *buf = malloc(size);
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Michael Pavone <pavone@retrodev.com>
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diff changeset
159 size_t actual = vsnprintf(buf, size, format, args);
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diff changeset
160 if (actual >= size) {
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diff changeset
161 actual++;
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diff changeset
162 free(buf);
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diff changeset
163 buf = malloc(actual);
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diff changeset
164 va_end(args);
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diff changeset
165 va_start(args, format);
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diff changeset
166 vsnprintf(buf, actual, format, args);
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diff changeset
167 }
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diff changeset
168 fputs(buf, stdout);
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diff changeset
169 render_infobox("BlastEm Info", buf);
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diff changeset
170 free(buf);
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diff changeset
171 #ifndef _WIN32
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172 }
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Michael Pavone <pavone@retrodev.com>
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diff changeset
173 #endif
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diff changeset
174 va_end(args);
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diff changeset
175 }
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diff changeset
176
742
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diff changeset
177 #ifdef _WIN32
795
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=?UTF-8?q?Higor=20Eur=C3=ADpedes?= <heuripedes@gmail.com>
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diff changeset
178 #include <windows.h>
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=?UTF-8?q?Higor=20Eur=C3=ADpedes?= <heuripedes@gmail.com>
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diff changeset
179 #include <shlobj.h>
742
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180
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diff changeset
181 char * get_home_dir()
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diff changeset
182 {
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diff changeset
183 static char path[MAX_PATH];
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diff changeset
184 SHGetFolderPathA(NULL, CSIDL_PROFILE, NULL, 0, path);
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diff changeset
185 return path;
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diff changeset
186 }
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diff changeset
187
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diff changeset
188 char * get_exe_dir()
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diff changeset
189 {
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diff changeset
190 static char path[MAX_PATH];
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diff changeset
191 HMODULE module = GetModuleHandleA(NULL);
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diff changeset
192 GetModuleFileNameA(module, path, MAX_PATH);
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diff changeset
193
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diff changeset
194 int pathsize = strlen(path);
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diff changeset
195 for(char * cur = path + pathsize - 1; cur != path; cur--)
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diff changeset
196 {
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parents: 741
diff changeset
197 if (*cur == '\\') {
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diff changeset
198 *cur = 0;
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diff changeset
199 break;
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diff changeset
200 }
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diff changeset
201 }
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diff changeset
202 return path;
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diff changeset
203 }
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diff changeset
204
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diff changeset
205 #else
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diff changeset
206
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diff changeset
207 char * get_home_dir()
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diff changeset
208 {
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diff changeset
209 return getenv("HOME");
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diff changeset
210 }
2e1b3b258523 Make Windows port a little less half-assed
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diff changeset
211
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
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diff changeset
212 char * readlink_alloc(char * path)
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diff changeset
213 {
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parents: 495
diff changeset
214 char * linktext = NULL;
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parents: 495
diff changeset
215 ssize_t linksize = 512;
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diff changeset
216 ssize_t cursize = 0;
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diff changeset
217 do {
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parents: 495
diff changeset
218 if (linksize > cursize) {
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parents: 495
diff changeset
219 cursize = linksize;
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diff changeset
220 if (linktext) {
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diff changeset
221 free(linktext);
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diff changeset
222 }
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diff changeset
223 }
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diff changeset
224 linktext = malloc(cursize);
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diff changeset
225 linksize = readlink(path, linktext, cursize-1);
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parents: 495
diff changeset
226 if (linksize == -1) {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
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diff changeset
227 perror("readlink");
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diff changeset
228 free(linktext);
559
6b248602ab84 blastem builds and almost works on OS X now
Mike Pavone <pavone@retrodev.com>
parents: 549
diff changeset
229 return NULL;
496
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diff changeset
230 }
549
32da1e0d5e55 Properly null terminate string returned by readlink in util.c
Michael Pavone <pavone@retrodev.com>
parents: 496
diff changeset
231 } while ((linksize+1) > cursize);
32da1e0d5e55 Properly null terminate string returned by readlink in util.c
Michael Pavone <pavone@retrodev.com>
parents: 496
diff changeset
232 linktext[linksize] = 0;
496
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diff changeset
233 return linktext;
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diff changeset
234 }
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Mike Pavone <pavone@retrodev.com>
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diff changeset
235
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diff changeset
236 char * get_exe_dir()
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parents: 495
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237 {
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238 static char * exe_dir;
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239 if (!exe_dir) {
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240 char * cur;
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241 #ifdef HAS_PROC
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242 char * linktext = readlink_alloc("/proc/self/exe");
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243 if (!linktext) {
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244 goto fallback;
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245 }
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246 int linksize = strlen(linktext);
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247 for(cur = linktext + linksize - 1; cur != linktext; cur--)
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248 {
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249 if (*cur == '/') {
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250 *cur = 0;
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251 break;
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252 }
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253 }
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254 if (cur == linktext) {
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255 free(linktext);
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256 fallback:
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257 #endif
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258 if (!exe_str) {
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259 fputs("/proc/self/exe is not available and set_exe_str was not called!", stderr);
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260 }
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261 int pathsize = strlen(exe_str);
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262 for(cur = exe_str + pathsize - 1; cur != exe_str; cur--)
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263 {
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264 if (*cur == '/') {
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265 exe_dir = malloc(cur-exe_str+1);
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266 memcpy(exe_dir, exe_str, cur-exe_str);
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267 exe_dir[cur-exe_str] = 0;
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268 break;
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269 }
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270 }
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271 #ifdef HAS_PROC
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272 } else {
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273 exe_dir = linktext;
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274 }
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275 #endif
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276 }
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277 return exe_dir;
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278 }
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279
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280 #endif